Fractional ac Josephson effect in p- and d-wave superconductors

Details Fractional ac Josephson effect in p- and d-wave superconductors Fractional ac Josephson effect in p- and d-wave superconductors

2002-10-08

arxiv.org/abs/cond-mat/0210148v5

The European Physical Journal B 37, 349-361 (2004)

Physics

Condensed Matter

Superconductivity

v. 5: minor update of references in proofs; v.4: minor improvements; v.3: major expansion to 13 pages, 6 figures; v.2: signifi

Scientific paper

10.1140/epjb/e2004-00066-4

For certain orientations of Josephson junctions between two p_x-wave or two d-wave superconductors, the subgap Andreev bound states produce a 4pi-periodic relation between the Josephson current I and the phase difference phi: I sin(phi/2). Consequently, the ac Josephson current has the fractional frequency eV/h, where V is the dc voltage. In the tunneling limit, the Josephson current is proportional to the first power (not square) of the electron tunneling amplitude. Thus, the Josephson current between unconventional superconductors is carried by single electrons, rather than by Cooper pairs. The fractional ac Josephson effect can be observed experimentally by measuring frequency spectrum of microwave radiation from the junction. We also study junctions between singlet s-wave and triplet p_x-wave, as well as between chiral p_x + ip_y-wave superconductors.

Affiliated with

Also associated with

No associations

Rating

Fractional ac Josephson effect in p- and d-wave superconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fractional ac Josephson effect in p- and d-wave superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fractional ac Josephson effect in p- and d-wave superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-548568